&amp;lt;italic&amp;gt;In-situ&amp;lt;/italic&amp;gt; high-temperature mechanical property measurement technology and its application in scanning electron microscope

Liang, Jie; Han, Qi‐Nan; He, Zhiwu; Wang, Zhen; Xie, Hongfu; Li, Xide; Shi, Hui‐Ji

doi:10.1360/sspma2018-00148

Cited by 4 publications

(2 citation statements)

References 27 publications

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“…Although the conduction of in situ high-temperature mechanical experiments in the SEM environment has encountered great difficulties and challenges, different in situ hightemperature experimental equipment or products have been developed in the past, mainly including miniature hightemperature tensile testing machines, high-temperature nanoindenters, a micro-electromechanical systems (MEMS) type high-temperature experimental platform, etc [32]. In terms of the function, these experimental instruments include a mechanical loading unit, a high-temperature heating unit, and other auxiliary equipment.…”

Section: High-temperature Experimental Set-up and High Contrast High-...mentioning

confidence: 99%

In situ scanning–digital image correlation for high-temperature deformation measurement of nickel-based single crystal superalloy

Xie

Wang

et al. 2021

Meas. Sci. Technol.

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In situ microscopic observation and measurement of deformations for advanced hot-section materials at high-temperature is helpful in understanding their failure mechanisms. Scanning electron microscopy (SEM) and a digital image correlation (DIC) method are combined to capture the failure process. This article reports an in situ high-temperature testing system which can heat the specimen up to 1000 °C and provide clear images simultaneously. The Al2O3 nanoscale particles are developed as high-temperature deformation carriers in SEM–DIC, which are suitable for high-temperature samples with significant advantages of stability, high image contrast and without shedding or melting up to 1000 °C. High-temperature tensile and creep properties of a nickel-based single crystal superalloy (NBSCS) at 750 °C were investigated using this system. In addition, a scanning–DIC (S–DIC) method, which avoids errors introduced by conventional DIC methods, was used to calculate full-field dynamic displacement and strain of high-temperature NBSCS samples. Analysis of the strain fields show that the strain concentrations are generally at the positions of crack initiation or propagation, and the creep cracks interact with each other through the strain field. Finally, the crack opening displacement is obtained using the virtual extensometer.

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Section: High-temperature Experimental Set-up and High Contrast High-...mentioning

confidence: 99%

In situ scanning–digital image correlation for high-temperature deformation measurement of nickel-based single crystal superalloy

Xie

Wang

et al. 2021

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Due to significant differences in research objects, these testing devices and methodologies fail to fulfill the in situ mechanical testing requirements of bulk materials, particularly in terms of mechanical structure design and performance parameters. The works of Liang 18 and Wang et al 19 have provided a review of in situ SEM mechanical measurement technology with high-temperature for bulk materials. However, their works did not review the in situ SEM fatigue testing technology and the importance of this technology in current fatigue research, which will be emphasized in this paper.…”

Section: Introductionmentioning

confidence: 99%